GRACE: Bus monitor Karen Klein, seen being tormented in a YouTube video, said she didn't want the students who bullied her charged. Four students were suspended today for their role in the incident./YouTube

These punks’ bus-bullying days are over — for a year, at least.

The kids who mercilessly taunted a Rochester-area school-bus monitor — bringing the 68-year-old to tears — were suspended from school for a year and will be forced to perform community service, the district announced today, a week after video of the brutal verbal abuse went viral.

“Each of the students involved admitted to wrongdoing,” Greece Central School District Superintendent Barbara Deane-Williams said in a statement, adding that the district “remains committed to bullying prevention efforts.”

The names of the four students were not released. The seventh-graders tormented monitor Karen Klein on a school bus June 18, calling her fat and ugly until the grandmother of eight began to cry, in a despicable display later posted to YouTube.

One of the boys told Klein, “You’re so ugly, your kids should kill themselves” — a particularly painful barb, as one of Klein’s sons had in fact committed suicide.

The video, which has been viewed more than 8 million times on YouTube, prompted an outpouring of support for Klein, with more than 20,000 donors contributing $667,534 to a vacation fund for the bus monitor.

Each student was barred from Athena Middle School for the school year and will be required to complete 50 hours of community service with senior citizens, the district said. They are also banned from school buses for a year.

The students will spend their time at a district “Reengagement Center” instead of school, and can apply to go back to Athena after 30 weeks if they’ve been behaving themselves.

Klein told NBC’s “Today” show that it took “a lot of willpower” not to respond to the verbal assault, but added that she was “amazed” by the support she received in its aftermath.

“I’ve got these nice letters, emails, Facebook messages,” she said. “It’s like, wow, there’s a whole world out there that I didn’t know. It’s really awesome.”

Klein also said she didn’t want police to bring the boys up on criminal charges.

Two of the kids apologized in statements read on “Anderson Cooper 36” last Thursday.

“I am so sorry for the way I treated you,” one of the kids, Josh, said. “When I saw the video I was disgusted and could not believe I did that. I am sorry for being so mean and I will never treat anyone this way again.”

“I feel really bad about what I did. I wish I had never done those things,” another kid Wesley added. “If that had happened to someone in my family, like my mother or grandmother, I would be really mad at the people who did that to them.”

The father of one of the boys, Robert Helm, apologized to Klein in person last Friday. The families of teh students have reportedly received death threats since the incident.

“There’s no excuse, and we’re going to get to the bottom of that,” Helm told Klein in a meeting captured by News 8 WROC. “It really broke my heart. I shed a lot of tears.”

“We apologize, from the bottom of our hearts on what happened,” the father of another bully, Luis, said in a statement. “We wish this will never happen again, to nobody and from nobody. Like Luis said, if your friend says to bully somebody, please don’t do it….A couple of people have already died because of this. We apologize to Ms. Klein. We’re deeply sorry.